Acetylene-lamp.



A. L. HANSEN.

ACETYLENE LAMP.

APPucArloN meu Aue.26.1916.

AUGIE I.. HANSEN, or nvnNs'roN,

COMPANY,

ILLINOIS, ASSIGNOR T0 JUSTRITE MANUFAC'IRIN C1"V 0F CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS.

ACETYLENE-LAMP.-

Specification of Letters Patent. Palgntdl July 117, 119117.

Application filed August 28, 1916. Serial No. 117,128.

To all whom t may concern:

Be it known that I, ANGIE L. HANSEN, a citizen of the United States, and a resident of Evanston, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Acetylene- Lamps, of which the following is a specification.

My invention relates to acetylene lamps and involves important features of construction and operation. y

Mine lamps to which my invention refers usually comprise a water container and a carbid container with a water tube extend-v ing downwardly from the water container. In prior structures such water tube `usually extends a considerable distance from the water container in order to bring its end well into the carbid when the carbid container is coupled to the water container. With this arrangement the end of the waterV tube must be crammed into the carbid when a freshly charged carbid container is applied and such cramming action may interfere 'with proper application of the carbid container in getting it properly centered in thereceiving socket on the water container, this being particularly true where the coupling between the containers is in the form of threading. If the water tube does not extend entirely to the carbid there will be an over-abundance of water fed to the carbid before sucient gas pressure will be generated to hold back the water.

In general the object of my invention is to overcome the above defects in prior struc tures. More in detail the object is to provide a water tube which will not extend into the carbid and which is provided with means for entrapping below its water outlet the gas generated as soon as the first water reaches the carbid, which gas exerts pres sure at the water outlet to prevent excessive water flow immediately after opening of the water valve and before the carbid container becomes filled with gas under operating pressure. The gas entrapping means is movable along the tube and is shifted by the swelling therefor.

0n the accompanying sheet of drawings I have shown a lamp embodying the features of my invention. In this drawing- Figure 1 is a vertical diametrical sectional view ofthe lamp body and carbid slaking carbid yto act as an agitator container, full,

Fig. 2 is an enlarged sectional view of the lower end of the lamp body and the carbid container and water tube,

Fig. 3 is a View of the inside of the car bid container receiving socket, and

F ig. 4 is a top view of the carbid container.

The miners cap lamp shown `on the drawing comprises a water container 5 and the carbid container 6. One end of the water container is closed by a reflector 7 and the opposite end has a hook 8 and the clamp 9 for supporting the lamp on a cap. At the lower part of the water container is the cy lindrical socket 10 for receiving the reduced neck 11 of the carbid container, the lower end of the socket flaring to form the flange 12 which is parallel with the beveled shoulder 13 of the carbidcontainer, a washer 14C being inserted between the shoulder and flange to form a sealing fit when thecon` tainers are brought together. Any means may be provided for securing the containers together. As shown a shallow cup member 15 is secured to the top of the socket 10 and has the lower sections of its side walls de? flected outwardly to form semi-circular helically extending ledges 16 and 17, and the upper edge of the carbid container neck is deflected inwardly and bent to form sernicircular helically extending flanges 18 and 19. When the carbid container is inserted in the socket and then'turned the helical flanges and ledges will engage and will draw the carbid container into the socket to compress the washer 14 between the flange 12 and the shoulder 13. A tube 20 extends through the top of the socket 10 and the cup 15 and deflects laterally to extend axially through the reflector and seats a burner tip 21 at its outer end. To strain the gas'passing from the'carbid container into the tube 2O an annular strainer frame 22 of cup-shaped cross-section may be se cured in the cup 15 to communicate at its open rear end with the tube, the gas being caused to pass through the small straining openings 23 before it can reach the tube.

Extending vertically through the water container and axially through l.the socket 10 is the water tube 24 which is contracted at its lower end to form a valve seat 25 surrounding the water outlet 26. In the tube the water tube being shown in is the cylindrical 'valve stem 27 having the conicalvalve end 28 for coperating with the seat 25, the stem at its upper end having the turning handle 29. The water tube has also the spirally extending slot 30 into which a pin 31 extends from the valve stem, and from the upper end of the spiral slot the vertical slotl32 extends'to the upper end of the water tube. With this arrangement when the stem is turned while the pin is in the spiral slot the stem will be raised and lowered to open and close the valve outlet 26 `and when the valve reaches the vertical 'slot 32 the stem may be withdrawn from the water tube. VNear the bottom of the water container the water tube has the water inlet 33. In order to retard the flow of water through'l the water tube to the outlet 2.6 'the valve stem at its lower end has the spiral groove 34` cut therein, this groove Ytogether with the water tube wall forming the long spiral water passageway or duct 35 throughV which the water must pass before it reaches the outlet 26. l

Inaccordance with ,my invention Iprovide on the lower end of the water tube a tubular structure 36V forming a hood. This hood is shiftable on the water tube and when in its lowermost position is held on the tube by the engagement of the linturned flange 37 latits yupper end with'the annular shoulder 38 at 'the bottom ofthe water tube. yThe water tube projects a comparatively short distance into the carbid container so that the valve outlet 26 is above the normal level of carbid freshly charged into the carbid container, 'the container being usually filled half full. rThe hood 36, however, normally hangs from the lower end of the water tube and when the carbid container is secured to the water container it will extend downwardly approximately to the normal carbidv level and will rest on the carbid, as shown in Fig. 1. Now, when theiwater valve is opened water will drop to the carbid directlyv below the hood and the first gas generated will flow upwardly into the hood and will exert pressure at the water outlet to prevent excessive water flow, andl such control will be maintained until the carbid container becomes filled with gas at operating pressure, which operating pressure will then prevent excess waterrflow. As the carbid becomes moistened it will slake and swelly and will exert upward pressure against the hood butthe hood being free -to slide on the water tube it will'rise with the slaked carbid and-then the slalred carbid between the 'hood and the solid carbid will act somewhatlile blottingpaper to prevent excessive water How and also Vto distribute the moisture to the sides ofthe container sok that `more even consumption of the carbid takes place. The shifting hood will also serve to agitate the slaked carbid so that it cannot become too dense or hard. Preferably I also provide an extension 39 pro jecting through the valve outlet 26 from the lower end of the valve stem, this eX- tension being shown in the form of a length of flexible wire cable. By turning the valve stem the extension will agitate the slaked carbid. Should the pressure become excessive in the carbid container, gas can readily pass through the slalred carbid and through the passageway 35 and water inlet 33 to the water container from whence it can pass to the exterior through the slot 32 or vent openings 40 in the plug 4:1 provided for the filling opening 49..

The lamp described is particularly adaptable for miners7 use. There is nothing to prevent centering and securing of the carbid container to the water container. At the same time there can be no excessive flow of water immediately after the water valve is opened for the hood at the lowered end of 'the water tube will entrap the first gas generated and this gas will regulate the lamp until the carbid container becomes lled with gas and operating pressure. The water is evenly and uniformlyl distributed to the solid carbid and the accumulated slaked carbid can be agitated at any time to prevent clogging or to increase the water iiow and the size of the iiame. The lamp will burn with the ordinary service size flame from the time the water valve isfirst opened until the carbid is exhausted practically without need of adjustment.

' I do not of course desire to be limited to the exact construction and operation shown and described as changes and modifications may be possible which would still come within 'the scope of the invention.

I claim as follows:

1. In an acetylene lamp, the combination of a water container, a carbid container, a water outlet for the water container, and a hood carried by the water container below said outlet and extending to substantially the normal level of fresh carbid in the carbid container whereby the gas generated by the first iow of water will be entrapped below the outlet to exert pressure for controlling the How of water to the carbid.

2. In an acetylenelamp, the combination of a water container, a carbid container, a water tube extending from the water container and terminating a distance above the normal level of fresh carbid in the carbid container, andan extension tube suspended from and freely slidable on'the water tube to bridge the space between the water tube end and the carbid when the lamp is started and to be freely raised by the expanding carbid during slalring thereof.

3. In an acetylene lamp, the combination of a water container, a carbid container, a water tube extending from the water con# 1,233,633 ril tainer and terminating a distance above the normal level of fresh carbid in the carbid container, and an extension suspended from and freely slidable on said water tube to bridge the space between the end of the water tube and the carbid, said extension being closed on its sides but having its lower end wide open for the entrance of gas generated by the irst low of water, such gas being entrapped below the water tube outlet to exert pressure for controlling the flow of water to the carbid.

4. In an acetylene lamp, the combination of a water container, a carbid container, a water tube extending from the water container and terminating a distance above the normal level of fresh carbid in the carbid container, and a tubular extension on said water tube for bridging the space between the lower end of the water tube and the car- @iranes of this patent may be obtained for five cents each, by addressing the Washington, D. C.

bid, said extension being entirely free to be raised by the expanding slaking carbid.

5. In an acetylene lamp, the combination of a water container having a receiving socket, a water tube extending from the water container into said receiving socket, a carbid container having a throat for engaging in said socket, said water tube terminating a distance above the normal level of fresh carbid in the carbid container when said container is secured in said socket, and an extension on said water tube freely slidable thereon to be raised by and maintained above the carbid during the inserting and securing movement of said carbid container in said socket.

In witness whereof I hereunto subscribe my name this 25th day of August, A. D.

AUGIE L. HANSEN.

Commissioner of Patents, 

